Remove non-relevant case. If there are zero results, no list is retur…

…ned. If there is 1 result, it is also the last result.

openeo_driver/save_result.py

@@ -505,15 +505,14 @@ def get_data(self):
             df = pd.concat(map(pd.read_csv, paths))
             features = df.feature_index.unique()
             if str(features.dtype) == 'int64':
+                # TODO: This logic might get cleaned up when one kind ove vector cube is used everywhere
                 if isinstance(self._regions, DriverVectorCube):
                     amount_of_regions = len(self._regions.get_geometries())
                 elif isinstance(self._regions, DelayedVector):
                     geometries = list(self._regions.geometries)
                     amount_of_regions = len(geometries)
                 elif isinstance(self._regions, GeometryCollection):
                     amount_of_regions = len(self._regions)
-                elif isinstance(self._regions, BaseGeometry):
-                    amount_of_regions = 1  # layercatalog.py:1026 implies that this is a single polygon
                 else:
                     _log.warning("Using polygon with largest index to estimate how many input polygons there where.")
                     amount_of_regions = features.max() + 1